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* Initial support for the CMake build system.Oscar Fuentes2008-09-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56419 91177308-0d34-0410-b5e6-96231b3b80d8
* Add helper function to get a 32-bit floating point constant. No ↵Bill Wendling2008-09-22
| | | | | | functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56418 91177308-0d34-0410-b5e6-96231b3b80d8
* explain what earlyclobber actually is.Chris Lattner2008-09-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56415 91177308-0d34-0410-b5e6-96231b3b80d8
* Fold immediates into X86 shifts with fast isel. This generates:Chris Lattner2008-09-21
| | | | | | | | | | | | | | | sarl $3, %ecx instead of: movl $3, %ecx sarl %cl, %edx This shrinks fast isel 176.gcc by about 2000 instructions (.3%) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56413 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out code into HandleVirtRegDef, for consistency withDan Gohman2008-09-21
| | | | | | | | Handle{Virt,Phys}Reg{Def,Use}. Remove a redundant check for register zero, and redundant checks for isPhysicalRegister. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56412 91177308-0d34-0410-b5e6-96231b3b80d8
* Instead of building a list and sorting it just to find a maximum element,Dan Gohman2008-09-21
| | | | | | | compute the maximum element directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56411 91177308-0d34-0410-b5e6-96231b3b80d8
* Fetch the starting index of the block when assigning intervals. This gets ↵Owen Anderson2008-09-21
| | | | | | | | | live-in indices correct in the presence of things like EH labels. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56410 91177308-0d34-0410-b5e6-96231b3b80d8
* don't print GlobalAddressSDNode's with an offset of zero as "foo0".Chris Lattner2008-09-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56399 91177308-0d34-0410-b5e6-96231b3b80d8
* add a noteChris Lattner2008-09-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56391 91177308-0d34-0410-b5e6-96231b3b80d8
* Update VS projects.Cedric Venet2008-09-20
| | | | | | Change some class to struct for coherency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56389 91177308-0d34-0410-b5e6-96231b3b80d8
* Shorten and rearrange data fields to save a word of memory.Dale Johannesen2008-09-20
| | | | | | | | Per review feedback. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56388 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement review feedback from Devang: make useDuncan Sands2008-09-20
| | | | | | | of mayReadFromMemory and mayWriteToMemory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56387 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach coalescer about earlyclobber bits.Dale Johannesen2008-09-20
| | | | | | | | Check bits for preferred register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56384 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2808. When regalloc runs out of register, it spill a physical register ↵Evan Cheng2008-09-20
| | | | | | around the live interval being allocated. Do not continue to try to spill another register, just grab the physical register and move on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56381 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up the test.Evan Cheng2008-09-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56380 91177308-0d34-0410-b5e6-96231b3b80d8
* No need to print function stubs for Mac OS X 10.5 and up. Linker will handle it.Evan Cheng2008-09-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56378 91177308-0d34-0410-b5e6-96231b3b80d8
* 80 column violation.Evan Cheng2008-09-20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56377 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a FastISel GlobalVariable CSE bug.Dan Gohman2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56376 91177308-0d34-0410-b5e6-96231b3b80d8
* Continue after removing the current MI.Evan Cheng2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56372 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor X86SelectConstAddr, folding it into X86SelectAddress. ThisDan Gohman2008-09-19
| | | | | | | | results in better code for globals. Also, unbreak the local CSE for GlobalValue stub loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56371 91177308-0d34-0410-b5e6-96231b3b80d8
* Make earlyclobber stuff work when virtual regsDale Johannesen2008-09-19
| | | | | | | | have previously been assigned conflicting physreg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56364 91177308-0d34-0410-b5e6-96231b3b80d8
* Prevent warning about conversion from 64-bit to 32-bit by (yuck) casting...Bill Wendling2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56359 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that ConstantSDNode doesn't hold an APInt,Dan Gohman2008-09-19
| | | | | | | | | use ARG_FLAGSSDNode as the most aligned node type, as it contains an int64_t, which is 8-byte aligned on mingw. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56358 91177308-0d34-0410-b5e6-96231b3b80d8
* Added static methods to APSInt: getMinValue and getMaxValue.Ted Kremenek2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56355 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-materalized definition instructions may be dead. Whack them.Evan Cheng2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56352 91177308-0d34-0410-b5e6-96231b3b80d8
* backing out my last commit, it was not intended to go on the trunkGabor Greif2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56349 91177308-0d34-0410-b5e6-96231b3b80d8
* first shot at removing Use::ValGabor Greif2008-09-19
| | | | | | untested, Use::swap() is definitely not done yet git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56348 91177308-0d34-0410-b5e6-96231b3b80d8
* Turn on the AddReadAttrs pass.Duncan Sands2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56345 91177308-0d34-0410-b5e6-96231b3b80d8
* Add test for improvement of readonly to readnone,Duncan Sands2008-09-19
| | | | | | | and non-demotion of readnone to readonly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56344 91177308-0d34-0410-b5e6-96231b3b80d8
* Turn on these tests!Duncan Sands2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56343 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the MarkModRef pass (use AddReadAttrs instead).Duncan Sands2008-09-19
| | | | | | | | | Unfortunately this means removing one regression test of GlobalsModRef because I couldn't work out how to perform it without MarkModRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56342 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new pass AddReadAttrs which works out which functionsDuncan Sands2008-09-19
| | | | | | | | | | can get the readnone/readonly attributes, and gives them it. The plan is to remove markmodref (which did the same thing by querying GlobalsModRef) and delete the analogous functionality from GlobalsModRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56341 91177308-0d34-0410-b5e6-96231b3b80d8
* Test the callgraph directly for the missing edge.Duncan Sands2008-09-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56338 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach -callgraph to always print the callgraph (as theDuncan Sands2008-09-19
| | | | | | | | | description says it does), not just when -analyze is used as well. This means printing to stderr, so adjust some tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56337 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove AsmThatEarlyClobber etc. from LiveIntervalAnalysisDale Johannesen2008-09-19
| | | | | | | | | and redo as linked list walk. Logic moved into RA. Per review feedback. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56326 91177308-0d34-0410-b5e6-96231b3b80d8
* splitLoop does not handle split condition EQ.Devang Patel2008-09-18
| | | | | | | Fixes PR 2805 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56321 91177308-0d34-0410-b5e6-96231b3b80d8
* Address-mode folding for X86FastISel. It's pretty basic, but itDan Gohman2008-09-18
| | | | | | | | | catches a fair number of common cases. Note that this currently causes Fast-ISel to leave behind lots of dead instructions. Those will be dealt with in subsequent commits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56320 91177308-0d34-0410-b5e6-96231b3b80d8
* Decrementing the iterator here could be wrong if the worklist is empty after ↵Bill Wendling2008-09-18
| | | | | | | | | the "erase". Thanks to Ji Young Park for the patch! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56316 91177308-0d34-0410-b5e6-96231b3b80d8
* Try to place hoisted instructions befoe icmp instruction.Devang Patel2008-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56315 91177308-0d34-0410-b5e6-96231b3b80d8
* Somehow RegAllocLinearScan is keeping two pointers to MachineRegisterInfo.Evan Cheng2008-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56314 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify this code. The FastISel class has its own TD member.Dan Gohman2008-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56311 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't consider instructions with implicit physical registerDan Gohman2008-09-18
| | | | | | | defs to be necessarily live. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56310 91177308-0d34-0410-b5e6-96231b3b80d8
* Upgrade doxygen.Tanya Lattner2008-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56308 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new "fast" scheduler. This is currently basically just aDan Gohman2008-09-18
| | | | | | | | | | | | | | | | | copy of the BURRList scheduler, but with several parts ripped out, such as backtracking, online topological sort maintenance (needed by backtracking), the priority queue, and Sethi-Ullman number computation and maintenance (needed by the priority queue). As a result of all this, it generates somewhat lower quality code, but that's its tradeoff for running about 30% faster than list-burr in -fast mode in many cases. This is somewhat experimental. Moving forward, major pieces of this can be refactored with pieces in common with ScheduleDAGRRList.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56307 91177308-0d34-0410-b5e6-96231b3b80d8
* Preliminary support for systems which require changing JIT memory regions ↵Evan Cheng2008-09-18
| | | | | | privilege from read / write to read / executable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56303 91177308-0d34-0410-b5e6-96231b3b80d8
* Duh. Default to ARMCC::AL (always).Evan Cheng2008-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56301 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up.Evan Cheng2008-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56300 91177308-0d34-0410-b5e6-96231b3b80d8
* Cosmetic.Evan Cheng2008-09-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56299 91177308-0d34-0410-b5e6-96231b3b80d8
* FastISel: For calls, prefer using the callee's address as a constantDan Gohman2008-09-17
| | | | | | | | | | | | | over having it in a register. And wait until after checking type legality before requesting that the callee address be placed in a register. Also, fix support for calls with void return type. This speeds up fast-isel isel time by about 15% and reduces instruction counts by about 3% overall on certain testcases. It also changes many indirect calls to direct calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56292 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a bit to mark operands of asm's that conflictDale Johannesen2008-09-17
| | | | | | | | | | | with an earlyclobber operand elsewhere. Propagate this bit and the earlyclobber bit through SDISel. Change linear-scan RA not to allocate regs in a way that conflicts with an earlyclobber. See also comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56290 91177308-0d34-0410-b5e6-96231b3b80d8
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